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TRUSTED BY WATERLOO, IL HOMEOWNERS

4.6
Average homeowner rating
75
Verified heating and air conditioning services reviews

Verified Reviews for Heating And Air Conditioning Service pros in Waterloo, IL

*The Angi rating for Heating And Air Conditioning Service companies in Waterloo, IL is a rating based on verified reviews from our community of homeowners who have used these pros to meet their Heating And Air Conditioning Service needs.

*The HomeAdvisor rating for Heating And Air Conditioning Service companies in Waterloo, IL is a rating based on verified reviews from our community of homeowners who have used these pros to meet their Heating And Air Conditioning Service needs.

Last update on July 19, 2026

Reviewed in July 2026
Austin was very prompt calling me and was very courteous on the phone. He arrived on time and explained and showed me what happened and gave me options on how he could fix it. I never felt pressured during the process. Very reasonable on pricing too. I would definitely recommend Austin to do...
RDI CONTRACTORS LLC
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Reviewed in May 2025
I recently had a service call for my HVAC system with Citilink Heating & Cooling, and the experience was excellent from start to finish. The technician did a fantastic job—arrived on time, was professional and courteous, and quickly diagnosed and fixed the issue. He took the time to explain what...
Citi-Link Heating and Cooling
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Reviewed in May 2023
Robert Christner knows his job and fixed my problem with my heat/air conditioner Robert also install my dad heating unit we both are very pleased with the work Robert did for us. Robert Christner was very nice and respectful.
Ameripro Heating and Cooling, LLC
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Reviewed in July 2022
Works quickly! System installed in the worst heat condition outside.
Metro Radon Control of St. Louis, LLC
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Reviewed in March 2022
Technician spent an hour or more inspecting, testing and cleaning my AC and furnace units. I feel confident it was a conscientious review going into the Spring and Summer.
Dunn Heating Air Conditioning and Plumbing
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Reviewed in December 2021
Phil has great knowledge of our radiator and furnace and we always call him to fix it. Itâ s an old heating and cooling system because our house is old and he knows how to fix the issues every time.
The Furnace Guys Heating & Cooling
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Reviewed in September 2021
We were very satisfied with the job Ortman did. During the walk through, Doug saw an opportunity to reconfigure the design of the patio with the fire pit. It turned out better than we could have hoped for. The crew worked very hard during a week of heat advisory. They kept me in the loop with...
Ortmann Concrete Inc
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Reviewed in August 2021
We had a serious problem in our attic and needed specific ventilation on the roof in order to resolve it. Shawn came over and looked at it and I explained the attic situation. He understood exactly what we needed, ACI came and installed a new roof with ventilation and we are very satisfied and...
ACI Exteriors, LLC
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Reviewed in April 2021
Great Experience had my air ducts cleaned worried about my Wife â s lungs , Mike and David did a wonderful job very courteous and cordial, cleaned up the mess when they were finished! Thank You Bob! !!!!!!!!
Kwik Dry Carpet Care, LLC
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Reviewed in October 2020
Quick and so professional! Made a huge difference in the heat and air conditioner not having to work as hard! Not even 24 hours after they were finished we noticed a huge difference!
St Louis Insulation
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Find Heating and air conditioning pros in Waterloo

Allstar Carpet & Upholstery Care

4.8(

)

Serving Waterloo, IL and surrounding areas

Approved

In business since 2006

Free estimates

Emergency services offered

"Excellent job thank you. Will use them again for certain."

Response time8 hrs

Response rate89%

Recommended by97%of homeowners

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Healthy Home Pest Control & Services

4.4(

385

)

Serving Waterloo, IL and surrounding areas

Approved

In business since 2017

Free estimates

Emergency services offered

"Tim and Jeff were very fastidious in setting up, cleaning, and making sure the house was in good order when they left . We also had an Aeroseal treatment which followed with James and Connor. It did take some time to set up after the vents were cleaned and blown out, but the application of this polymer to close gaps in lthe galvinized steel ducts was remarkable."

Response time8 hrs

Response rate94%

506 neighbors recently requested a quote

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The Furnace Guys Heating & Cooling

5.0(

)

Serving Waterloo, IL and surrounding areas

Approved

In business since 2021

Free estimates

Emergency services offered

"Phil has great knowledge of our radiator and furnace and we always call him to fix it. Itâ s an old heating and cooling system because our house is old and he knows how to fix the issues every time."

Response time30 mins

Response rate100%

Recommended by83%of homeowners

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Mr. Handyman Metro East

4.6(

196

)

Serving Waterloo, IL and surrounding areas

Approved

In business since 2000

Warranties offered

Small jobs welcome

"Bob came out and provided an estimate which included options for completing the work. Once the work was scheduled he arrived on time and courteous, as usual. New security light of our choosing was installed in our backyard and a GFI outlet were installed in the garage in under an hour. We have used Mr. Handyman Metro East for several projects at our home and continue to use them because of their professionalism, value and customer focus."

Recommended by95%of homeowners

Serving Waterloo, IL and surrounding areas

Approved

Super Service Award Winner

In business since 2025

Free estimates

Credit card accepted

"He came very quickly, did a great job. Very professional. Also he let me know I did not need my dryer vent---which I appreciated very much!"

Response time10 hrs

35 neighbors recently requested a quote

Serving Waterloo, IL and surrounding areas

Approved

In business since 2025

Free estimates

Emergency services offered

"They did a fabulous job in cleaning all the vents in the house. The entire crew was very professional and treated our home with care. Even our dog loved them! We highly recommend using them!"

+21

2 neighbors recently requested a quote

Serving Waterloo, IL and surrounding areas

Approved

Free estimates

Emergency services offered

Warranties offered

"Furance was not working, call House Doctor. They were out the next day and got it back up and running. Professional and efficient. Plus, very affordable."

Serving Waterloo, IL and surrounding areas

Approved

Super Service Award Winner

In business since 2024

Free estimates

Warranties offered

"Vinc and his crew at VMK did and excellent job and I highly recommend there services ! Dave Caputo"

Response time5 hrs

Response rate86%

74 neighbors recently requested a quote

Serving Waterloo, IL and surrounding areas

Approved

Customers say: Quick response

"Very professional knew what they were doing. I would highly recommend them."

11 neighbors recently requested a quote

Recommended by91%of homeowners

Serving Waterloo, IL and surrounding areas

Approved

Emergency services offered

Warranties offered

Small jobs welcome

"There was a large hole in my roof and they repaired it. They did an excellent job and were very clean. I highly recommend them."

11 neighbors recently requested a quote

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Heating and Air Conditioning questions, answered by experts

Air filters with a high MERV rating, 11 or above, shouldn't cause airflow problems in most residential systems. However, the airflow can be restricted in some HVAC systems if they aren't designed for high MERV ratings. If in doubt, a local duct installer should inspect your ductwork so that you know what your system can handle.

To make the most out of your AC, consider implementing the following best practices:

Choose the right size AC for your home to ensure your unit runs as efficiently as possible.
Choose a window with shade, as direct sunlight can cause your AC unit to overheat.
Clean or replace the filter at least every two months.
Inspect the AC’s fan and straighten it if necessary.
Discontinue use immediately if you suspect a malfunction, as running the AC while broken can lead to significant issues.
Turn off (or adjust the temperature) when you leave the house.

During the summer, it’s best to set your AC to 78 degrees when you’re home and awake, according to the Department of Energy (DOE). For better energy efficiency, raise the temperature slightly to 85 degrees while you’re out of the house. The National Sleep Foundation advises lowering your thermostat to between 60 and 67 degrees when you’re asleep.

Though it may seem redundant, you can absolutely have a central AC unit and a window AC in your home. In fact, if you place a window AC unit near your central air, it can help move the cooler air throughout your home. But doubling up on your AC methods can get pricey, so factor in cost accordingly.

Fixing a leak in an AC unit costs $200 to $1,600, depending on the type of leak and any related damage. But depending on the age and condition of your AC, it might make more sense to replace the AC unit instead of repairing it. If your AC is only a few years old and relatively problem-free, then repairing it is the right call. But if it’s nearing a decade old and has other issues, consider replacing it.

The Waterloo, IL homeowners’ guide to heating and air conditioning services

From average costs to expert advice, get all the answers you need to get your job done.

See all articles

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Feb 25, 2026Feb 25, 2026
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•
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•
May 18, 2026May 18, 2026
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•
Jul 9, 2026Jul 9, 2026
Can You Add Central Air to a Baseboard-Heated House?
A central air system is great for someone looking to cool and heat their home all year round. Even if your home uses baseboard heating, you can still make the switch. Read on to learn more about adding central air to a baseboard-heated house.
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•
May 21, 2026May 21, 2026
12 Air Conditioning Tips for the Summer
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•
Jul 15, 2026Jul 15, 2026
13 Cool Tips to Reduce Air Conditioning Costs This Summer
Learn how to save money on air conditioning costs this summer by following this handy guide all about your favorite cooling system.